(19)
(11) EP 2 161 900 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.03.2010 Bulletin 2010/12

(43) Date of publication A2:
10.03.2010 Bulletin 2010/10

(21) Application number: 09179857.9

(22) Date of filing: 16.10.2006
(51) International Patent Classification (IPC): 
H04L 29/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(62) Application number of the earlier application in accordance with Art. 76 EPC:
06807321.2 / 2074795

(71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
164 83 Stockholm (SE)

(72) Inventors:
  • Vikberg, Jari
    15338, Järna (SE)
  • Nylander, Thomas
    13934, Värmdö (SE)
  • Hallenstaal, Magnus
    18750, Täby (SE)

(74) Representative: Lind, Robert 
Marks & Clerk LLP 4220 Nash Court
Oxford Business Park South Oxford OX4 2RU
Oxford Business Park South Oxford OX4 2RU (GB)

   


(54) Mobility for IMS users


(57) According to a first aspect of the present invention there is provided method of operating an application server responsible for real time services within an IP Multimedia Subsystem, the method comprising:
recording at the application server, explicitly and/or implicitly, the availability of packet switched and circuit switched access for associated user terminals;
receiving a terminating session establishment request in respect of one of said user terminals;
determining whether or not the received request relates to one of a class of real time services, and selecting one or both of a packet switched and circuit switched access for completing the session based upon the determined class and the access availability.







Search report